WIT Press

Linking Changes In Ozone To Changes In Emissions And Meteorology

Price

Free (open access)

Paper DOI

10.2495/AIR990641

Volume

37

Pages

13

Published

1999

Size

1,057 kb

Author(s)

D. Chan, S.T. Rao, I.C. Zurbenko and P.S. Porter

Abstract

Estimation of trends in ozone air quality is a complex problem because of the strong influence of meteorology on ozone and its precursors. In this paper we present a physically-consistent methodology to link changes in ozone to changes in precursor emissions in the presence of meteorological fluctuations. Time series ozone concentrations (O,), nitrogen oxides (NOx) and non-methane hydrocarbons (NMHC) measured from 1985 to 1993 in the Los Angeles Air Basin are first separated into different time scales using the Kolmogorov-Zurbenko (KZ) fi

Keywords